6.7. The included mpd.script

The mpd.script that ships with mpd can usually be used as it is without modification for typical PPP applications. This script defines the following labels:

DialPeer

This script causes mpd to attempt to identify the attached modem or ISDN Terminal Adapter device, configure the device, and dial a remote peer. This the label you want to use for the set modem script when acting as a dialup client.

The variables that are used by this script are:

$Telephone

The telephone number to dial.

$DialPrefix

Dialing prefix to get an outside line, if any.

$ConnectTimeout

Time in seconds to wait for the modems to connect. Default 45 seconds.

$SpeakerOff

Set this to yes if you want to silence the modem speaker while dialing.

$Serial230K

If your serial port is capable of running at 230K baud, set this to yes. Note: normal PC hardware is not capable of 230K.

In addition, the following variables are required to be set for ISDN terminal adapters:

$TA_Bonding

If the terminal adapter should do 2 B-channel multi-link PPP, set this to yes. Note: a terminal adapter doing multi-link PPP still appears to mpd as a single link PPP connection and should be configured as such.

$TA_NoDoubleTelno

When $TA_Bonding is yes, do not double the dialed number. Normally, in such situations mpd dials using the command ATDT${Telephone}&${Telephone}. If your $Telephone string already contains both numbers, then set $TA_NoDoubleTelno to yes.

$TA_56K

If you need to restrict the B channels to to 56K, set this to yes. Only necessary for some North American ISDN lines.

$TA_VoiceCall

If you need to place a voice mode call, set this to yes. Only necessary for some North American ISDN lines. Not all terminal adapters support this.

$TA_AuthChap

Some older terminal adapters require you to specify a priori whether CHAP or PAP authentication will be requested by the remote side. Set to yes to tell the terminal adapter to use CHAP.

$TA_SwitchType

Set this to your ISDN line's switch type. Should be one of NI-1, DMS-100, 5ESS P2P, or 5ESS MP. Only required for North American ISDN.

$TA_Dirno1

$TA_Dirno2

$TA_SPID1

$TA_SPID2

Set these to your ISDN line's directory numbers and SPID's for both B channels. Only required for North American ISDN.

AnswerCall

This is an idle script that waits for an incoming call and then answers it. The variables that are used by this script are:

$ConnectTimeout

Time in seconds to wait for the modems to connect. Default 45 seconds.

$RingTimeout

How long to wait for a RING before giving up and trying again. Default 10 minutes.

Ringback

This is also an idle script that waits for an incoming call, but instead of answering the call it ignores it and initiates an outgoing connection. This is useful for remotely bringing up a dialup client machine.

$RingbackTimeout

How long before giving up (reset and try again). Default: 60 minutes.

$RingStoppedTime

For analog modems, we have to wait for the ringing to stop before trying to dial out, otherwise we'll inadvertently answer the incoming call. This value is set to the minimum time to wait before declaring that the ringing has stopped. Default: 8 seconds.